Sioux Falls, SD Weather
Sioux Falls, SD climate is warm during summer when temperatures tend to be in the 70's and extremely cold during winter when temperatures tend to be in the 10's.
The warmest month of the year is July with an average maximum temperature of 85.60 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 2.90 degrees Fahrenheit.
Temperature variations between night and day tend to be moderate during summer with a difference that can reach 25 degrees Fahrenheit, and moderate during winter with an average difference of 22 degrees Fahrenheit.
The annual average precipitation at Sioux Falls is 24.69 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is June with an average rainfall of 3.49 Inches.
Weather Data
Current Conditions
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Fair, 26°F | Humidity: 92% | Dewpoint: 24°F |
| Wind Speed: CALM | Heat Index: 26°F | ||
| Barometer: 30.04 in. | Wind Chill: 26°F |
Weather Forecast
| Tonight: Clear. Lows in the upper 20s. Southeast winds 5 to 10 mph. | ||
| Lo: 29°F | ||
| Hi: 55°F | Saturday: Sunny and breezy...Then a few late day clouds. Highs in the mid 50s. South winds increasing to 15 to 25 mph. | |
| Lo: 39°F | ||
| Hi: 50°F | Sunday: Mostly cloudy. A 20 percent chance of light rain in the morning. Highs around 50. Southwest winds around 5 mph becoming south in the afternoon. | |
| Lo: 35°F | ||
| Hi: 45°F | Monday: Cloudy with a 40 percent chance of rain. Highs in the mid 40s. | |
| Lo: 35°F | ||
| Hi: 39°F | Tuesday: Cloudy with a 50 percent chance of rain or snow. Highs in the upper 30s. | |
| Lo: 29°F | ||
| Hi: 39°F | Wednesday: Mostly cloudy. Highs in the upper 30s. Lows in the lower 20s. | |
| Lo: 21°F | ||
| Hi: 39°F | Thursday: Mostly cloudy. Highs in the upper 30s. Lows in the lower 20s. | |
| Lo: 21°F |
Moon, Sunrise and Sunset
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Moon Phase: Waxing Crescent Moon | Civil Twilight: 6:54 AM CST |
Sunrise: 7:26 AM CST |
| Sunset: 4:57 PM CST |
Civil Twilight: 5:29 PM CST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 25.2 | 31.6 | 43.8 | 58.8 | 71.0 | 80.6 | 85.6 | 83.2 | 74.2 | 61.1 | 41.9 | 28.8 | 57.2 |
| Mean °F | 14.0 | 20.8 | 32.6 | 45.7 | 57.8 | 67.5 | 73.0 | 70.8 | 60.9 | 48.0 | 31.3 | 18.3 | 45.1 |
| Min °F | 2.9 | 10.1 | 21.3 | 32.5 | 44.6 | 54.5 | 60.3 | 58.4 | 47.6 | 34.8 | 20.7 | 7.8 | 33.0 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 0.51 | 0.51 | 1.81 | 2.65 | 3.39 | 3.49 | 2.93 | 3.01 | 2.58 | 1.93 | 1.36 | 0.52 | 24.69 |

